Many dead after attack on Nigerian town

At least 23 people killed and several buildings destroyed after suspected Boko Haram fighters mount attack in Potiskum.

Northeastern Nigeria has been hardest hit by Boko Haram, though its attacks have spread to other regions [AFP]

At least 23 people have been killed after suspected Boko Haram fighters attacked a town in northeastern Nigeria, a hospital official has said.

Hospital officials said on Saturday that the fighters had wreaked havoc two days before, destroying several buildings in a town regarded as a hotbed for Boko Haram activity.

A nurse at the Potiskum general hospital spoke of 20 bodies being brought to the morgue, while residents said three bodies were buried by their families following explosions and shootings in the restive city on Thursday.

"We now have a total of 20 bodies brought in yesterday from the attacks of the previous night. Initially 11 bodies were brought and nine more were received later," a nurse, who asked not to be named, told the AFP news agency.

"Most of them have gunshot wounds but some had their throat slit. The bodies included that of a police sergeant and a prison warder," he said.

Residents said the toll could be higher as some family members had taken some bodies from the streets for burial.

Explosions and gunfire shook Potiskum on Thursday, with residents reporting that several schools and a government building were burnt.

In the city of Maiduguri, also in the northeast and a base of Boko Haram, petrol bombs exploded, leading to a fire that burned down 11 roadside shops, the military said in a statement.

One civilian was also shot dead and four others were wounded, it said.

Boko Haram arrest

Meanwhile, in a separate development, Nigeria's military said soldiers had arrested a member of Boko Haram at a prominent senator's home on Friday.